Aluminum alloy.



s'ra'ras ANT are WALTHER GOSHANN, OF ESSEN-ON-THERUHR, GERMANY, ASSIGNOR TO FRIED.

A'KlIENGESELLSCI-IAFT, OF ESSEN-ON-THE-RUHR, GERMANY KRUPP ALUMINUM ALLOY.

Specification of Le tters Patent.

Patented May 5, 1908.

Application filed August 2, 1907. Serial No. 386,842.

To all whom it may concern:

Be it known that I, WALTHER GOSMANN, a subject of the Emperor of Germany, and a resident of 1- Alfredstrasse, Essen-on-the Ruhr, Germany, have invented certain new and useful Improvements in Aluminum Alloys, of which the following is a specifica- The content of copper in the alloy may vary between 7 and 8.5% and the content of till may varv between 4.5 and 5.5%.

The alloy according to the present invention can be easily cast. The castings are com letely homogeneous and have rela-f tive y high rigidrt ;they can be easily Worked and the finis ed articles have a beautiful, lustrous appearance.

Having thus described the invention, What is claimed and (lesiredto secure by Letters Patent is:

An alloy comprising about 87% of aluminum, about 8% of copper and about 5% of tin.

The foregoing specification signed at Di'isseldorf, Germany, this seventeenth (lay of July, 1907.

VVALTHER GOSMANN.

In presence of M. ENGELS, E. BURKE. 

